﻿/* ==============================================================================
*
*   Copyright (c) 2010, Pierre Favier
*   All rights reserved.
*
*   NTasking is free software: you can redistribute it and/or modify it
*   under the terms of the GNU General Public License as published by the
*   Free Software Foundation.
*
*   Redistribution and use in source and binary forms, with or without
*   modification, are permitted provided that the following conditions
*   are met:
*
*   -   Redistributions of source code must retain the above copyright notice,
*       this list of conditions and the following disclaimer.
*
*   -   Redistributions in binary form must reproduce the above
*       copyright notice, this list of conditions and the following
*       disclaimer in the documentation and/or other materials
*       provided with the distribution.
*
*   THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
*   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
*   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
*   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
*   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
*   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
*   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
*   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
*   ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
*   TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
*   THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
*   SUCH DAMAGE.
*
* ============================================================================== */

using System;
using System.Diagnostics;

namespace NTasking.Internals
{

    /// <summary>
    /// Provide tracing facilities for the Ntasking library when the TASKING_DEBUG symbol is defined
    /// </summary>
    internal static class Tracer
    {

        [Conditional("TASKING_DEBUG")]
        internal static void Trace(string message)
        {
            StackTrace trace = new StackTrace();
            int frame = 1;

            while (true)
            {
                Type declaringType = trace.GetFrame(frame).GetMethod().DeclaringType;

                if (declaringType != typeof(ThreadWrapper) && declaringType != typeof(ManagedLock) && declaringType != typeof(CodeWrapper))
                    break;

                frame += 1;
            }

            System.Reflection.MethodBase method = trace.GetFrame(frame).GetMethod();

            Console.WriteLine(string.Format("[{0}]\t{3}\t{1}.{2}",
                              Task.CurrentTask,
                              method.DeclaringType.Name,
                              method.Name,
                              message));
        }

    }

}
